| Patents for G10K 9 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers (3,562) |
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| 10/01/1986 | CN85100714A Electromagnetic pulse transducer |
| 09/16/1986 | US4612530 Motor vehicle alarm system with acoustic signal emission via at least one radio loudspeaker installed into the motor vehicle |
| 08/13/1986 | EP0190601A1 Safety device for a shock wave discharge tube |
| 08/06/1986 | EP0189780A1 Shock wave discharge tube with a prolonged working life |
| 08/05/1986 | US4604606 Audio signalling device |
| 07/30/1986 | EP0188750A1 Shock sound waves apparatus for the disintegration of calculi |
| 07/23/1986 | EP0188017A1 Electroacoustic calling device |
| 07/22/1986 | US4602245 General purpose modular acoustic signal generator |
| 07/15/1986 | US4600851 Piezoelectric buzzer with circuit elements mounted on nodal areas |
| 07/03/1986 | WO1986003888A1 A rare earth flextensional transducer |
| 06/25/1986 | CN85202753U Audible alarm for preventing lock door failure |
| 06/04/1986 | EP0183236A2 Apparatus for the contactless disintegration of concrements in the bodies of living beings |
| 05/13/1986 | CA1204499A1 Mounting of a piezoceramic transducer in a telephone set |
| 05/06/1986 | US4586912 Game call |
| 03/26/1986 | EP0070279B1 Pressurized gas driven sound emitter |
| 03/18/1986 | US4576584 Wild turkey call |
| 03/04/1986 | US4574272 Tone ringer for telephone sets and other telecommunications apparatus |
| 01/21/1986 | US4566085 High intensity ultrasonic generator |
| 01/21/1986 | CA1199719A1 Piezo-electric ultrasonic transducer with damped suspension |
| 12/10/1985 | US4558305 Multiple tone signaling device |
| 12/04/1985 | EP0162959A1 Apparatus for the contactless disintegration of concrements |
| 10/15/1985 | CA1195419A1 Transducer supporting and contacting means |
| 10/10/1985 | CN85102564A Multi-functional low-noise electronical music sounding horn |
| 09/18/1985 | EP0154706A2 Piezoelectric air-ultrasound transducer with broadband characteristics |
| 09/17/1985 | US4541505 Acoustic unit base for electropneumatic horns |
| 09/10/1985 | US4540975 Electric horns |
| 09/10/1985 | CA1193339A1 Multiple tone signaling device |
| 07/17/1985 | EP0077364B1 Infrasound generator |
| 07/03/1985 | EP0146933A2 Sound generating apparatus |
| 07/02/1985 | US4526477 Piezoelectric buzzer for wrist watches |
| 05/21/1985 | US4517915 Low-frequency sound generator |
| 04/30/1985 | US4514834 Expendable underwater acoustic projector |
| 03/12/1985 | CA1183706A1 Electric horn with means for controlling curvature of the striker carrier |
| 03/06/1985 | EP0133665A2 Apparatus for the smashing at a distance of calculus |
| 02/27/1985 | EP0133570A2 Driver circuit for a piezo-electric transducer |
| 01/29/1985 | US4496914 For a piezoelectric transducer |
| 01/29/1985 | US4496871 Parallel type piezoelectric bimorph vibrator |
| 12/27/1984 | CA1180100A Ultrasonic transmitter-receiver |
| 12/05/1984 | EP0127247A2 Tunable response transducer |
| 12/04/1984 | US4486742 Multifrequency piezoelectric horn system |
| 09/04/1984 | US4469175 Mechanoacoustic transducer for use in transmitting high acoustic power densities into geological formations such as oil-saturated sandstone or shale |
| 07/24/1984 | US4462093 Symmetrical shell support for flextensional transducer |
| 07/10/1984 | CA1170483A1 Reverse alarm |
| 07/03/1984 | US4458170 Ultrasonic transmitter-receiver |
| 06/26/1984 | US4456849 Piezoelectric ultrasonic transducer with damped suspension |
| 04/24/1984 | US4445113 Small type acoustic device |
| 04/03/1984 | US4441099 Diaphragm horn |
| 04/03/1984 | US4440504 Electronic timepiece including a piezoelectric alarm |
| 02/28/1984 | US4433750 Synthetic horn projector with metal insert |
| 02/21/1984 | US4433404 Variety playing sound reproducing device |
| 01/31/1984 | US4429247 Piezoelectric transducer supporting and contacting means |
| 12/13/1983 | US4420826 Stress relief for flextensional transducer |
| 11/30/1983 | EP0094971A1 Sound generator |
| 11/01/1983 | US4413253 Miniature sounder with double tuned cavity |
| 10/18/1983 | US4410881 Electric horn with means for controlling curvature of the striker carrier |
| 10/11/1983 | US4409681 Transducer |
| 10/11/1983 | US4409588 Miniature sounder with multi-part tuned cavities |
| 08/30/1983 | US4401049 Acoustic warning device |
| 08/16/1983 | US4399427 Reverse alarm |
| 08/10/1983 | EP0085496A2 Transducer supporting and contacting means |
| 08/10/1983 | EP0085194A1 Electro-acoustical converter |
| 08/09/1983 | US4398182 Electromagnetic horn |
| 08/04/1983 | WO1983002709A1 Ultrasonic transducer |
| 08/02/1983 | US4396909 Frequency generating circuit |
| 08/02/1983 | US4396908 Electromagnetic warning instrument |
| 08/02/1983 | CA1151281A1 Acoustic beacons |
| 07/12/1983 | US4393373 Piezoelectric audible sound generator |
| 07/12/1983 | US4392747 Display device structure |
| 07/05/1983 | US4392215 Pest control apparatus |
| 07/05/1983 | US4391532 Electromagnetic acoustic transducer |
| 07/05/1983 | US4391299 Electro fluidic actuator |
| 06/21/1983 | US4389123 Electronic alarm watch |
| 06/09/1983 | WO1983002030A1 Sound generator |
| 06/07/1983 | US4387451 Low frequency nonresonant acoustic projector |
| 06/07/1983 | CA1147584A1 Acoustical tone generator |
| 05/31/1983 | US4386244 Electromagnetic transducer |
| 05/17/1983 | US4384351 Flextensional transducer |
| 05/17/1983 | CA1146663A1 Low-frequency sound generator |
| 05/03/1983 | CA1145597A2 Tone generator |
| 04/27/1983 | EP0077364A1 Infrasound Generator. |
| 04/19/1983 | CA1144867A1 Speaker grille for streamlined light bar mounted on vehicle roof |
| 04/06/1983 | EP0075812A1 Electronic gong |
| 03/30/1983 | EP0075273A1 Ultrasonic transducer |
| 03/16/1983 | EP0073878A1 Electronic siren |
| 02/22/1983 | US4374624 Sound emitting device for electronic timepiece |
| 02/16/1983 | EP0071851A1 Piezoelectric three-tone buzzer |
| 02/15/1983 | USRE31152 Alarm buzzer |
| 02/15/1983 | US4374377 Piezoelectric audio transducer |
| 02/15/1983 | CA1141207A1 Tone generator |
| 01/26/1983 | EP0070279A1 Pressurized gas driven sound emitter. |
| 01/11/1983 | US4368400 Piezoelectric ultrasonic transducer mounted in a housing |
| 01/04/1983 | US4367426 Oxides of lead, lanthanum, zirconium and titanium |
| 12/07/1982 | US4361952 Method of adjusting air gap of an electric horn |
| 11/30/1982 | US4361882 Sound reproducing device incorporating a device for selecting a desired record groove |
| 11/30/1982 | US4361879 Ferrofluid transducer |
| 11/23/1982 | US4359962 Low-frequency sound generator |
| 11/11/1982 | WO1982003803A1 An arrangement in an infrasound generator |
| 10/19/1982 | US4354448 Manually driven generating mechanism for doorbells |
| 10/19/1982 | CA1134020A1 Pest control apparatus |
| 10/05/1982 | US4353120 Low-frequency sound source for towed array condition appraiser system (TACAS) |